Decking in Mountain Ash Aberpennar (11)

Looking to transform your garden with decking in Mountain Ash? Enter your postcode to see the checked decking fitters near you.

From understanding the costs to choosing the right decking installer, here’s what you need to know to hire with confidence.

How much does decking cost in the UK?

The cost of decking varies depending on the material you choose, the size of the decked area, and the design.

As a guide, the average cost for the supply and installation of a medium-sized decked area (approx. 15–30m²) is:

• £2,400 for softwood decking
• £3,600 for hardwood decking
• £3,000 for composite decking

How much is decking per m²?

By the square metre, for supply and installation, you’re looking at around:

• £80 per m² for treated softwood decking
• £120 per m² for hardwood decking
• £100 per m² for composite decking

Extras such as steps, balustrades, or lighting will increase the total cost.

Composite decking vs wood decking

Homeowners often ask whether to choose composite or timber decking:

• Softwood decking: Cheapest upfront, looks natural, but requires annual treatment and has a shorter lifespan
• Hardwood decking: Premium look, more durable, but more expensive to buy and install
• Composite decking: Made from wood fibres and plastic; long lifespan (20–30 years), low maintenance, fade- and rot-resistant. Higher upfront cost, but often better value over time

Our wood vs composite decking cost guide has plenty more information to help you decide.

Decking vs patio: which is better?

Choosing between decking and a patio? It comes down to budget and style:

• Decking is generally cheaper to install, quicker to lay, and better for uneven or sloped gardens
• Patios (stone or paving) last longer, require less upkeep, but often involve higher upfront costs for excavation and materials
• In the UK, decking often costs less initially, but patios can offer lower lifetime maintenance costs

Compare options in our decking vs patio cost guide.

How to install decking

Decking installation can be done as a DIY project or by a checked carpenter. The process usually involves:

• Preparing the ground (clearing, levelling, or installing a base)
• Laying a sub-frame with treated timber or composite joists
• Fixing decking boards securely with screws or hidden fasteners
• Adding finishing touches such as edging, steps, or railings

Checked decking fitters in Mountain Ash will ensure your decking is safe, level, and built to last.

Why hire a decking specialist near me?

It may be tempting to try a DIY installation, but hiring an experienced decking installer near you has several benefits:

• Experienced installers know how to handle drainage, levelling, and tricky garden layouts
• They’ll provide guidance on the best materials for your space and budget
• Their expertise will ensure a finish that increases durability and enhances kerb appeal

For tradespeople committed to quality and a job done right, search for decking installation in your area with Checkatrade.